CN105157009A - Abrasion-proof device of low-temperature economizer - Google Patents
Abrasion-proof device of low-temperature economizer Download PDFInfo
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- CN105157009A CN105157009A CN201510353785.5A CN201510353785A CN105157009A CN 105157009 A CN105157009 A CN 105157009A CN 201510353785 A CN201510353785 A CN 201510353785A CN 105157009 A CN105157009 A CN 105157009A
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- low
- gas
- economizer
- abrasion
- stack
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Abstract
An abrasion-proof device of a low-temperature economizer is characterized in that abrasion-proof bushings (2) are additionally arranged on the portions, located between fins (1) of finned tubes of the low-temperature economizer, of unthreaded tubes (3); the portions, located between the fins (1), of the unthreaded tubes (3) are wrapped by the abrasion-proof bushings (2), and the abrasion-proof bushings (2) are arranged on the finned tubes in the flue gas flowing direction. The abrasion-proof device of the low-temperature economizer is additionally arranged on the first three rows of finned tubes of a gas inlet of the low-temperature economizer, therefore, the situation that abrasion to the heat exchange tubes is aggravated due to the fact that the tube rows are directly scoured by the flue gas can be prevented, equipment outage caused by leakage of a heat exchanger is avoided, and the service life of the heat exchanger can be prolonged greatly.
Description
Technical field
The present invention relates to energy-conserving and environment-protective energy recovery technical field, especially a kind of low-level (stack-gas) economizer shoe.Power plant's low-level (stack-gas) economizer engineering mainly applied by this low-level (stack-gas) economizer shoe.
Background technology
At present, domestic power-plant flue gas low-level (stack-gas) economizer is when building, due on the flue before all flue gas heat-exchange unit being arranged in electric cleaner in a lot of situation of position limitation, as shown in Figure 1, Figure 2, when flue gas enters heat exchanger, wash away in oblique angle, and the flowing velocity of flue gas is fast, by the finned tube of the known heat exchanger herein of force analysis when flue gas ash flies granule impact to its heat exchanger tube surface, first three heat exchanger tube wearing and tearing draining into five rows will aggravate, and makes tube wall thinning, finally heat exchanger tube mill can be leaked, the equipment that affects runs, and heat exchanger whole service life is shortened greatly.
Summary of the invention
The object of the present invention is to provide a kind of low-level (stack-gas) economizer shoe, to reduce the wearing and tearing of flue gas exchange heat pipe
Technical solutions according to the invention are as follows:
A kind of low-level (stack-gas) economizer shoe; gas feature comprises the light pipe (3) be arranged on low-level (stack-gas) economizer finned tube between fin (1) and fin (1) to install wearing-resistant tile (2) additional; wearing-resistant tile (2) both sides are fin (1); light pipe (3), by wearing-resistant tile (2) protection, is arranged in face of flow of flue gas direction.
The width of wearing-resistant tile (2), relevant with the pitch between fin (1).
Wearing-resistant tile (2) only needs to be arranged in the finned tube that low-level (stack-gas) economizer flue gas enters three to five rows along flue gas direction.
The thickness of wearing-resistant tile is 50mm to 100mm.
The invention has the beneficial effects as follows:
Low-level (stack-gas) economizer shoe of the present invention is installed at first three heat exchanger tube to five rows of low-level (stack-gas) economizer gas approach, can prevent flue gas from directly washing away heat exchanger tube causes pipe wall of heat exchange pipe thinning, heat exchanger tube is encased the overwhelming majority, prevents flue gas stream from after heat exchanger tube, producing washing away after eddy current exchange heat pipe.
Accompanying drawing explanation
The arrangement schematic diagram of the flue gas low-temperature economizer of Fig. 1 prior art.
The flue gas flow direction of Fig. 2 prior art and the structural representation of heat exchanger tube.
Fig. 3 is mechanism's schematic side view of low-level (stack-gas) economizer shoe of the present invention.
Fig. 4 is mechanism's floor map of low-level (stack-gas) economizer shoe of the present invention.
Detailed description of the invention
Principle of the present invention, concrete structure and preferred forms is further illustrated below in conjunction with accompanying drawing.
As a kind of in Fig. 3 to Fig. 4 shoe of low-level (stack-gas) economizer; gas feature comprises the light pipe (3) be arranged on low-level (stack-gas) economizer finned tube between fin (1) and fin (1) to install wearing-resistant tile (2) additional; wearing-resistant tile (2) both sides are fin (1); light pipe (3), by wearing-resistant tile (2) protection, is arranged in face of flow of flue gas direction.
The width of wearing-resistant tile (2), relevant with the pitch between fin (1).
Wearing-resistant tile (2) only needs to be arranged in the finned tube that low-level (stack-gas) economizer flue gas enters three to five rows along flue gas direction.
The thickness of wearing-resistant tile is 50mm to 100mm.
Low-level (stack-gas) economizer shoe is installed at first three heat exchanger tube to five rows of low-level (stack-gas) economizer gas approach, can prevent flue gas from directly washing away heat exchanger tube causes pipe wall of heat exchange pipe thinning, heat exchanger tube is encased the overwhelming majority, prevents flue gas stream from after heat exchanger tube, producing washing away after eddy current exchange heat pipe.
Claims (4)
1. a low-level (stack-gas) economizer shoe; gas feature comprises the light pipe (3) be arranged on low-level (stack-gas) economizer finned tube between fin (1) and fin (1) to install wearing-resistant tile (2) additional; wearing-resistant tile (2) both sides are fin (1); light pipe (3), by wearing-resistant tile (2) protection, is arranged in face of flow of flue gas direction.
2., according to a kind of low-level (stack-gas) economizer shoe according to claim 1, it is characterized in that the width of wearing-resistant tile (2), relevant with the pitch between fin (1).
3., according to a kind of low-level (stack-gas) economizer shoe according to claim 1, it is characterized in that wearing-resistant tile (2) only needs to be arranged in the finned tube that low-level (stack-gas) economizer flue gas enters three to five rows along flue gas direction.
4., according to a kind of low-level (stack-gas) economizer shoe according to claim 1, it is characterized in that the thickness of wearing-resistant tile is 50mm to 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353785.5A CN105157009A (en) | 2015-06-24 | 2015-06-24 | Abrasion-proof device of low-temperature economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353785.5A CN105157009A (en) | 2015-06-24 | 2015-06-24 | Abrasion-proof device of low-temperature economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105157009A true CN105157009A (en) | 2015-12-16 |
Family
ID=54797972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510353785.5A Pending CN105157009A (en) | 2015-06-24 | 2015-06-24 | Abrasion-proof device of low-temperature economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105157009A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167800A (en) * | 2017-12-25 | 2018-06-15 | 浙江浙能技术研究院有限公司 | A kind of improvement boiler economizer |
| CN113958941A (en) * | 2021-11-25 | 2022-01-21 | 河北建投国融能源服务有限公司 | Low-temperature economizer anti-wear false pipe arrangement and operation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4839273B2 (en) * | 2007-06-29 | 2011-12-21 | 株式会社日立製作所 | Steam power plant |
| CN202733872U (en) * | 2012-07-19 | 2013-02-13 | 张家港华东锅炉有限公司 | Abrasion-proof tile used in H-type fins economizer |
| CN103322550A (en) * | 2013-07-10 | 2013-09-25 | 江苏海德节能科技有限公司 | Anti-abrasion device of low temperature coal economizer |
| CN203836943U (en) * | 2014-05-09 | 2014-09-17 | 邯郸学院 | Low-temperature coal economizer of 300MW circulating fluidized bed boiler |
-
2015
- 2015-06-24 CN CN201510353785.5A patent/CN105157009A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4839273B2 (en) * | 2007-06-29 | 2011-12-21 | 株式会社日立製作所 | Steam power plant |
| CN202733872U (en) * | 2012-07-19 | 2013-02-13 | 张家港华东锅炉有限公司 | Abrasion-proof tile used in H-type fins economizer |
| CN103322550A (en) * | 2013-07-10 | 2013-09-25 | 江苏海德节能科技有限公司 | Anti-abrasion device of low temperature coal economizer |
| CN203836943U (en) * | 2014-05-09 | 2014-09-17 | 邯郸学院 | Low-temperature coal economizer of 300MW circulating fluidized bed boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167800A (en) * | 2017-12-25 | 2018-06-15 | 浙江浙能技术研究院有限公司 | A kind of improvement boiler economizer |
| CN113958941A (en) * | 2021-11-25 | 2022-01-21 | 河北建投国融能源服务有限公司 | Low-temperature economizer anti-wear false pipe arrangement and operation method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |